'99 & up Upgrades and Aftermarket - 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

Need to upgrade my tranny cooler - have read about 100 posts on here and am looking for a chime in from the tranny experts on here (Mark?) I cannot find a decent price on a 6.0 cooler but dieselsite has the Trucool for a VERY reasonable price - brackets included - any downside to the trucool? it is a vastly larger cooler than stock!

I originally installed a six pass Hayden cooler (19,000#) as my aux cooler, mounted in the open area behind the front liscense plate - license plate and holder relocated to enhance air flow. The 60 to 90 degrees above ambient was consistent while towing a 9,000# TT in 100 degree plus temps. I replaced the Hayden cooler with the Tru Cool Max and experienced similar results - this was done long before the 6.0 cooler became available. I do not have the oil to water cooler and other than one time when stuck in stop and go traffic for an extended period of time, have never seen my tranny temps go above 185 degrees. In my case, I see no ned to convert to the larger 6.0 cooler.

I just installed the Tru-cool 47391 in my 2000. The ambient temps were in the high 80's to low 90's. Prior to the installation, my trans temp was in the 160 to 180 range. During my 60 plus mile run yesterday, the trans temp stayed right at 145 degrees. I have not hooked up to my 12,000 5'ver yet but considering the unloaded difference, it should be a dynamite $110 investment. It is connected inline going from the stock cooler to the 47391 and back to the trans.

I just installed the Tru-cool 47391 in my 2000. The ambient temps were in the high 80's to low 90's. Prior to the installation, my trans temp was in the 160 to 180 range. During my 60 plus mile run yesterday, the trans temp stayed right at 145 degrees. I have not hooked up to my 12,000 5'ver yet but considering the unloaded difference, it should be a dynamite $110 investment. It is connected inline going from the stock cooler to the 47391 and back to the trans.

I have the 31 row 6.0 cooler and pull a 37ft toy hauler 5ver here in the Las Vegas heat. Before the change to the 6.0 cooler the trans temp would get hot quick. After the install pulling up out of Laughlin which is a 7% grade at times with the ambient temps around a 100 my temps are between 180 and 190 which I think shows it to be very good for my needs. just my .02
.

I just installed the 6.0 cooler in my 7.3 and I have yet to tow with it but I can allready tell a difference in temps around town. Normally around town in 85-95 degree weather it sits right below the 170 mark, since install of cooler haven't even seen the pyro move! I can't wait to tow with the new cooler next step will be deeper tranny pan and diff covers along with gears I believe the cooler is well worth the money and install is very easy

If you can get your hands on the 31-row cooler, then I would go that route. EBay sometimes has them. My temps unloaded are generally around 130 with ambient 75F. The other day when it was raining and in the 60's, the gauge barely even moved above minimum.

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